Home / 724,304.15-1,087,522.74-405,081.45

Finding the Fourth Proportional to 724,304.15, 1,087,522.74 and 405,081.45

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Solution

The fourth proportional to 724,304.15, 1,087,522.74 and 405,081.45 is: 608,218.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,304.15 : 1,087,522.74 = 405,081.45 : x
  2. Step 2: Convert to fraction form
    724,304.15/1,087,522.74 = 405,081.45/x
  3. Step 3: Cross multiply
    724,304.15x = 1,087,522.74 × 405,081.45
  4. Step 4: Simplify right side
    724,304.15x = 440,535,288,427.17
  5. Step 5: Solve for x
    x = 440,535,288,427.17/724,304.15
  6. Step 6: Final answer
    x = 608,218.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.